The title and claim to the county now devolved on Charles, another son of John IV; but Louis XI had him cast into prison, and retained there till he died of chagrin. There existed at the time another branch of the family, that had likewise received favours from King Louis, and had repaid them with treachery. Jacques d’Armagnac had been given by Louis XI vast estates in Meaux, Châlons, Langres, and Sens. The king had married Jacques to Louise of Anjou, and had created him Duke of Nemours. But Jacques was false to his benefactor, and joined in the League of Public Good against him. At the Treaty of Conflans he returned to his allegiance, swore fidelity on the relics in the Sainte Chapelle, and had the governorship of Paris conferred upon him. The very next year, 1469, he went over to the enemies of the King, and sided with his cousin, John IV, entering with him into negotiations with the English. But alarmed at the fate that befell John, he solicited pardon, and took an oath of fidelity, the most solemn and binding that could be devised. Two years later, when Louis XI was in embarrassment, the Duke refused the King the succour he demanded, and prepared to lay his hands on Languedoc. No sooner was Louis delivered from his anxieties than he besieged and took Nemours, in his Castle of Carlat, and confined him in an iron cage in the Bastille. His wife, feeling confident that he would experience no mercy at the hands of the justly incensed King, died during her confinement at Carlat. Jacques d’Armagnac’s hair turned white within a few days. He was not mistaken about the gravity of his position. Louis was alarmed at these incessant conspiracies, and indignant at the ingratitude of the Duke, whom no oaths could bind. In vain did Nemours implore permission to speak with the King face to face; Louis refused to see him, and gave orders that he should be tortured. One day, hearing that the prisoner had been treated with some consideration, he wrote sharply to the gaoler, “Give him Hell (the extremity of torture); let him suffer Hell in his own chamber. Take care not to let him out of the cage except to be tortured.” Jacques d’Armagnac was executed on 10 July, 1477. The assertion often made, that by the order of the King his children were placed under the scaffold so that their father’s blood might fall over them, is asserted by no contemporary writers. His sons died without issue, and so ended this wicked family.